Mazda 3 (Type BM, since 2013) Children’s Diseases Collected Thread

In the hope that this thread will not be filled with children’s diseases, it will help future buyers buy used cars. In autumn the current series will be 1 year old. Who has already had to visit the workshop unplanned or is not satisfied with the materials after X-Km? PS. In order not to burst the topic, please don’t post any: “Everything is OK with me” posts.